Engine-starter.



W. L. MCGHATH.

ENGINE'-STARTER. APPuc'AToN FILED om. 17, 19u;

' Patented B60111918.

2 SHEETS-SHEET l W. L. MCGRATH.

ENGiNE STARTER. APPLICATION FILED ocT. I7. 1911.

1,288,087. Patented Dec. 17, 1918.

2 SHEETS-SHEET 2.

@ai 69g@ UNITED STAFES IATENT OFFICE.

WILLIAM L. MCGRATH. OF ELMIRA. NEIV YORK. ASSIGNOR TO ECLIPSE MACHINE COMPANY- OF ELMIRA. NEW YORK. A CORPORATION OF `NEW YORK.

ENGINE-STARTER.

Patented Dec. 17, 1918.

Original application,led August 22. 1917. Serial No. 187.624. Divided and this application led October 17,

Be'it known that I, WiLLLuI L. Mctlnvrn, g a citizen of the United States, residing at Elmira, in the county ofChemung and State of New York-have invented certain new and useful Improvements in Engine-Start- 91ers, 'of which the following is a specitication.

My invention relates to engine starters andthe object thereof is to provide a sirnplel, etlicientand reliable construction of starter capable of working in connection 'with either a starting motor alone or both a crankshaft of an internal combustion envisional of anappli- 191i'. Serial gine; Fig. :2 a longitudinal section thereof;

Fig. 3 a cross section on the line 3-3 of Fig. 6; `Fig. et a -lfig. l looking in the direction of the arrows l'- l: Fig. a section on the saine line of Fig. l but. looking in the direction of the arrows 5-5; and Fig. 6 a detail sectional elevation of the sleeve and driven' wheel.

Referring to the embodiment of rny-invention herein shown. I have shown my starter as applied to the crankshaft A of an internal combustion engine,` not otherwise shown. but it will be understood that-such starter may be appliedto any rotatable inember of or connected with such engine. My starter device is adapted to oe operated b va suitable prime mover such as an electric motor (not shown) and is also associated with means for drivingI a generator (not shown). However. my device may be used merely as .a starter and not be. associated with any generator driving means. In the present instance the engine is provided with the usual crank shaft B having a. clutch )aw o adapted to be operatively connected with vthe crank shaft for cranking the engine or motor hv 'hand if desired.

Upon. the forward end of the crank shaft and extending forwardly thereof. there is secured a .sleeve l h v means of a cross pin 2 which also forms the means of securing stasection of the device shown in` Serial No. 197.169.

tionarily upon such sleeve the driven wheel 3, which is here shown as in the form of a pulley adapted to drivel a fan or generator or both by means of a. belt or the like.

By means of the extended portion of this sleeve there is formed therewithin a chamber l: which.I at its reduced forward end, is closedA by a suitable closure such as the plate 5. This chamber is adapted to contain a suitable lubricant which is adapted to flow through the ports 6 to the exterior surface of such sleeve at a point Where the same forms a bearing for the driving wheel hereinafter describe-d. A pin 7 passes transversely through the reduced forward end of the sleeve and projects therebeyond in such manner as to be engaged by the. jaw b of the hand crank. For the purpose of holding lboth this pin and plate 5in position I em-` ploy suitable means such as the screw 8 passing through the plate and screwing into the pin.

The driving wheel 9, which is here in the form of a sprocket wheel, is by preference and as shown, made in tivo parts, the Wheelv proper and its hub. such parts being `connectedttogether'by the screws i0. This hub extends on both sides of the wheel proper, the Vinner portion l1 of which is provided on its inner face or edge with clutch means such as the jaws lla. adapted to be operatively connected with the crank shaft by the engagement of such jaws with the pin 2.

The driving wheelL is mounted concentric of and has a bearing upon the sleeve 1. being capable of a rotary movement thereon and a longitudinal or axial movement thereof for the purpose of engagement with the pin Q and the driving of the crankshaft thereby. Means are provided for automatically shifting the driving wheel longitudinally to cause such engagement, such means consisting of the spring-pressed pin 12 mounted in the casing 13 which is screw-threaded into the forwardly extending hub portion '14 of the driving whee. This'pin project-s through such hub portion .and is adaptedto coperatie with peripheral and vinclined grooves in the bearing por ion of the sleeve l. As shown in detail .in Fig. 6 therev 'are two peripheral grooves -15 and 16 and a series of connecting inclined cross grooves 1T. which are deeper than the other grooves so that the spring-pressed pin willenter and follow these deeper grooves. When the parts are in normal or disengaged position as shown in Flgs. 1 and 2, th1s pin 1s positioned 111 the groove 15. but when the driving 5 Wheel is rotated the pin will enter one of the cross grooves which will cause a longitudinal or lateral movement of the driving wheel whereby `its clutch means will engage the pin 2 and drive the engine or motor, at

- which time the pin is positioned in the other peripheral groove 16. When the motor or engine has started on its own power the excess speed of rotation will cause a longitudinal 'retracting movement of the driving wheel because of the inclined edges of the clutch jayvs, and Will thereby cause a disengagement of the driving wheel from said opcratingconnection vwith the crank shaft. The driving wheel is held in its normal position with respect to the sleeve by means of the pin 12 which isA at this time in the peripheral groove 1,5.

l, Incombination with a rotatable memh01' of the engine to be started, a rotatable and axially movable Wheel arranged concentric thereof and provided with a clutch means, a second clutch means connected vfith said member and arranged in the path of movement'of the first named clutch means,

and means for. automatically moving the` driving Wheel to bring said tivo clutch means into. engagement, consisting of a yielding pin mounted in said drlving Wheel,

and a sleeve secured tolsaid member and having peripheral and inclined grooves With which said pin coperates.

2.. In ,combination with a rotatable member of the engine to be started, a rotatable and axially movable Wheel arranged concentric thereof and provided vfith a clutch means, a second clutch means c onnectedwith said-member and arranged in the path of movement of the iirst named clutch means', said'driving Wheel having a hub on the inner end of which its clutch'nieans 1s located,

and :means for automatically moving the driving Wheel to bring the tivo clutch means into engagement consisting of a y1eld1ng pin mounted `in the outer end portion of the hub. and a sleeve secured to said member and having peripheral and inclined grooves' with Which said pin coperates.

3. In combination With a rotatable member of the engine to be started. a rotatable and laxially movable driving Wheel arranged concentric thereof and provided with a clutch-means, a driven Wheel also arranged concentric of said member and disposed laterally of the driving Wheel, means for securing said driven Wheel to said member and adapted to be engaged? by the clutch means. and means for automatically moving the driving Wheel axially into clutching engagcment with said securing means.

concentric thereof and provided With a clutch means, a driven Wheel also .arranged concentric of sa1d member and having 'complementary clutch means, such driven Wheel being disposed laterally of the drivingv wheel, a sleeve which is secured to said member and 0n which the driving Wheel is loosely and the driven Wheel fixedly mounted, and means for automatically moving the driving ivheelaxially to cause clutching engagement with the driven Wheel.

6. In combination with a rotatable meinA ber of the enginel to be started, a rotatable and axially movable driving Wheel arranged concentric= thereof and provided With a clutch means, a driven vvlieel also arranged concentric of said member and disposed laterally of the drivingv'heel, a sleeve Which is concentric ot said'member and on which the driving Wheel is loosely`v mounted and the drivenvvheel is fixedly mounted, means lin common vvith the driven Wheel' and sleeve for securing them to said member, and

and a coupling of the driving and the driven Wheels.

. means for automatically moving the driving l ivlieel axially to cause-clutching engagement 7. In combination with a rotatable meinf ber of the engine to be started. a rotatable and axially movable driving Wheel 'arranged concentric thereof and Aprovided with a clutch means, a driven ivheel also arranged concentric of said member and disposed lat- -erally of the drivingivheel, asleeve which is concentric of said member and on which the driving Wheel yis loosely mounted and the driven wheel is'tixedly mounted, Ia pin for-securing. the dri-ven Wheelv and sleeve to said member, and means for automatically moving the driving-l Wheel axially to cause clutching engagement with said pin.

8. In combination with a rotatable member of the-'engine to be started, a'V rotatable and axially movable drivingivheel arranged concentric thereof and provided with a clutch means. a driven Wheel also arranged concentric of said'member and having comf plementary clutch means, such driven wheel being disposed late-rallyr of the' driving wheel, a sleeve which is secured to said member and on which the driving'wheel.

is loosely and the driven wheel xedly mounted, and means for aut-omati lally moving the driving wheel axially to cause clutching engagement. with the driven wheel, said sleeve being closed at its outer end and extending forward of the end of said member to form a 4chamber adapted to contain a lubricant, saidv sleevehaving a-port -between said chamber and 'the bearing 4formed between the sleeve and the driving wheel. f c f 9. In combination with a rotatable inember of the engine to be started, a rotatable and axially movable driving wheel arranged concentric ,thereof and provided with a clutch means, a driven wheel also arranged concentric of said member and having complementary clutch means, such driven wheel being .disposed laterally of the driving wheel, a sleeve which is secured to said member and on which the driving Vwheel is looselyy and the driven wheel ixedly mounted, means for automatically. moving the'driving wheel axially toca-use clutching engagement with the driven wheel, said sleeve being closed at its outer end and extending forward of the end oi said member to form a chamber adapted to contain a lubricant, said sleeve having a portbetween said chamber andthe bearing formed between the sleeve and the driving wheel. and a projection on the outerv end of such sleeve adapted to be engaged by an ordinary hand crank.

10. In combination with a rotatable niember of the engine to be started, a rotatable and axially movable driving wheel arranged concentric thereof and provided with a clutch means, a driven wheel also arranged concentric of said member and having complementary clutch means, such driven wheel being disposed laterally of the driving wheel, a sleeve which is secured to said member and on which the driving wheel is loosely and the driven wheel fixedly mounted, means for automatically moving the driving wheel axially to cause clutching engagement withthe driven wheel. said sleeve being closed at its forward endand extending forward of the end of said member to form a chamberadapted t3 contain a lubricant. said sleeve having a port between said chamber and the bearing formed between the sleeve and the drivingwheel. 'and a transverse vpin in the outer end ot' the sleeve and adanted to be engaged by an ordinary hand crank.

1l. In combination with. a rotatable r ember ot tlie'engine to be started, a rotatable and axially movable driving wheel arranged concentric thereof and provided with a clutch means, a driven wheel also arranged concentric of said member and having coinplementaiy clutch means, such driven wheel being disposed laterally of the driving wheel, a sleeve which lis secured to said. member and on which the driving wheel is vloosely and the driven wheel tixedly mounted, means for automatically moving the driving wheel axially to canse clutching engagement with the driven wheel, said sleeve being closed at its-outerend ander:-

ber of the engine to be started, a rotatable and axially movable driving wheel arranged concentric thereof and provided with a clutch means, av drivenwlieel also arranged concentric of said member and having coinplemeiitary clutch means, such driven wheel being disposed laterally otthe driving wheel, a sleeve which issecured to said incur' ber and on which the driving wheel is loosely and the. driven wheel ixedly mounted, means for automatically moving the;

driving wheel aiiially to cause clutching engagenient with the driven wheel, said sleeve extending forwardly of said member, and projection on the outer end of such sleeve adapted to be engaged by an ordinary hand crank.

13. In combination with a rctatabie member of .tlieengine to be started, a rotatable and axially movable driving wheel arranged concentric 'thereof and provided with a clutch means, a driven wheel also arranged concentric oi' said member and having complementary clutch means, such driven wheel. being disposed laterally of the driving wheel, a sleeve which is secured to said inemlier and on which the driving wheel Vis loosely and the driven wheel ixedly mounted, means for automatically ioving the driving wheel ca' clutching engagement with 'die driven wheel, said sleeve extending forwardly oi said member, and a transverse pin on the outer end ot such sleeve adapted to be engaged by an ordinary hand crank. i

14. ln combination with a rotatable member of the engine to be started, a rotatable and Vaxially movable driving wheel arranged concent-ric thereof, a driven wheel also arranged concentric oi said member and disposed laterall of the driving wheel` said two wheels being provided with complementary driving means, a, sleeve which is secured to said member and on which the driving wheel is loosely and the driven wheel iixedly mounted. and means for automatically moving the driving wheel axially to bring it into .posed laterally ofthe driving wheel, saidv drivingI engagement with the other Wheel, such means consisting of a yielding pin @mounted in the. driving wheel and cooperating wi-th circumferential. and inclined grooves formed in the outer surface of the sleeve.

15. In combination with a. rotatable meml ber of the engine to be started, a rotatable and axially movable driving wheel arranged concentric thereof, a driven wheel also Yarranged concentric of said member and disa hu'b fitting upon the sleeve, and means for automatically moving the driving Wheel axially to bring it into driving engagement With the other wheel, such means consisting of a. yielding pinmounted in such hub and extending therethrough, and the sleeve havving -circumierential and inclined grooves with which such pincooperates.

16. In combination with arotatable member of the engine to be started, a rotatable and axially movable. driving 'wheel arranged concentric thereof, a driven Wheel also arranfred concentric of said member and ydisposed laterally of the driving Wheel, said twovvheels being provided `vith complementary driving means, a sleeve which is secured to said member and on which the driving Wheel is loosely and the driven wheel fixedly mounted, said driving wheel having a hub fitting upon the sleeve, and means for automaticallyv moving the driving vvheel axially to bring it into driving engagement with the other Wheel, such means consisting or' a casing mounted on said hub, a spring pressed plunger within ythe casing and eX- tending therethrough, said sleeve having circumferential and inclined grooves with which said plunger pin coperates.

1T. In combination with a rotatable member or" the engine to be started, ay rotatable and axially movable driving Wheel arranged concentric thereof, a driven Wheel also arranged concentric of said member and disposed laterally of the driving Wheel, a sleeve which is secured to said member and on which the driving Wheel is loosely and the driven ivheel fixedly mounted, a pin for Securing the driven -iviieel and sleeve to said member, said driving Wheel having a hub, the inner end of which has a clutch face to engage the pin, and means mounted on the outer portion of the hub for automatically moving the driving wheel laterally consisting of a spring pressed pin passing through such portion of the hub'. said Sleeve lhaving circumferential and inclined grooves with 'which the pin coperates.

' WILLIAM L. MQGRATH. 

